STC SA4-640
FAA DRS lists SA4-640 as Current · Reissued, held by John P. Warren, for Cessna Aircraft 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Recorded change: Installation of a Lycoming O-290-D2 engine and Sensenich M74DM propeller. Snapshot dated June 30, 2026.
Recorded modification
What the FAA record covers
Installation of a Lycoming O-290-D2 engine and Sensenich M74DM propeller.
SA4-640 identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.
Applicability
Aircraft named in FAA DRS
Named aircraft: Cessna Aircraft 120, Cessna Aircraft 140, and Cessna Aircraft 140A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.
Buyer checks
Confirm before sourcing
- 01Does it cover the exact Cessna Aircraft 120 and Cessna Aircraft 140, and 1 more aircraft configuration model, serial range, and configuration?
- 02Which powerplant configuration, limits, instruments, and maintenance data apply?
- 03Who can legally supply the design data, kit, instructions, and ICAs?
- 04What parts, labor, conformity, and return-to-service work are excluded?
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